Universal Licensing System
WPKP503
License details
| ULS identifier | 1749369 |
|---|---|
| Call sign | WPKP503 |
| Radio service | IK |
| Status | E |
| Grant date | 1997-05-30 |
| Expiration | 2007-05-30 |
| Cancellation | 2007-07-22 |
| Frequency range | 157.74 MHz |
| Locations | 1 |
| Representative location | NOVATO, MARIN, CA |
| Coordinates | 38.0590833, -122.6041389 |
| Source archive | l_LMcomm.zip |
| Dataset refreshed | 2026-08-02 00:44:36 |
Licensee
| Name | DIGITCOM SERVICES INC |
|---|---|
| Applicant type | P |
| Location | LOS ANGELES, CA |
| Address | 12923 VENICE BLVD, LOS ANGELES, CA, 90066 |
| Phone | 7704165931 |
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | FB6C | 157.74000000 | 350.000000 | 1250.000000 | |||
| 2 | 1 | FB6C | 157.74000000 | 350.000000 | 1250.000000 | |||
| 3 | 1 | FB6C | 157.74000000 | 350.000000 | 1250.000000 | |||
| 4 | 1 | FB6C | 157.74000000 | 350.000000 | 1250.000000 | |||
| 5 | 1 | FB6C | 157.74000000 | 350.000000 | 1250.000000 | |||
| 6 | 1 | FB6C | 157.74000000 | 350.000000 | 1250.000000 |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|---|---|---|---|
| 1 | 1 | 157.74000000 | 20K0F1D | |
| 1 | 1 | 157.74000000 | 20K0F3E | |
| 2 | 1 | 157.74000000 | 20K0F1D | |
| 2 | 1 | 157.74000000 | 20K0F3E | |
| 3 | 1 | 157.74000000 | 20K0F1D | |
| 3 | 1 | 157.74000000 | 20K0F3E | |
| 4 | 1 | 157.74000000 | 20K0F1D | |
| 4 | 1 | 157.74000000 | 20K0F3E | |
| 5 | 1 | 157.74000000 | 20K0F3E | |
| 5 | 1 | 157.74000000 | 20K0F1D | |
| 6 | 1 | 157.74000000 | 20K0F3E | |
| 6 | 1 | 157.74000000 | 20K0F1D |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|---|---|---|---|---|---|---|
| 1 | T | MOUNT TAMALPAIS, SAN RAFAEL, MARIN, CA | 37.92880556, -122.58747222 | 768.000 m | TOWER | 18.000 m structure / 18.000 m overall | N |
| 2 | T | BIG ROCK RIDGE, NOVATO, MARIN, CA | 38.05908333, -122.60413889 | 575.000 m | TOWER | 30.000 m structure / 36.000 m overall | N |
| 3 | T | JOAQUIN RIDGE, COALINGA, FRESNO, CA | 36.30383333, -120.40294444 | 1103.000 m | TOWER | 55.000 m structure / 55.000 m overall | N |
| 4 | T | PINE HILL, CAMERON PARK, SACRAMENTO, CA | 38.71933333, -120.99077778 | 621.000 m | TOWER | 24.000 m structure / 24.000 m overall | N |
| 5 | T | MOUNT SAIN HELENA, CALISTOGA, SONOMA, CA | 38.65602778, -122.61691667 | 1207.000 m | TOWER | 30.000 m structure / 30.000 m overall | N |
| 6 | T | DAVIS DIXON TOWER, DIXON, SOLANO, CA | 38.49547222, -121.80747222 | 20.000 m | TOWER | 96.000 m structure / 96.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | T | 18.000 m | 0.000 | |||||
| 1 | 2 | T | 19.000 m | 0.000 | |||||
| 1 | 3 | T | 55.000 m | 0.000 | |||||
| 1 | 4 | T | 20.000 m | 0.000 | |||||
| 1 | 5 | T | 30.000 m | 0.000 | |||||
| 1 | 6 | T | 84.000 m | 0.000 |
Control points
| Number | Address | County | Phone |
|---|---|---|---|
| 1 | 12923 VENICE BLVD, LOS ANGELES, CA | 3106363321 |
License history
| Date | File or call sign | Action |
|---|---|---|
| 2007-07-22 | WPKP503 | LIEXP |
| 2007-03-05 | WPKP503 | LETRES |
| 2000-11-23 | WPKP503 | LICCNV |
| 1998-03-12 | WPKP503 | LIMOD |
| 1998-03-12 | WPKP503 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|---|---|---|
| ULS | 1749369 | 2026-08-02 00:44:36 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|---|---|---|
| Call Sign | WPKP503 | ULS 1749369 | 2026-08-02 00:44:36 |
| Status | E | ULS 1749369 | 2026-08-02 00:44:36 |
| Service | IK | ULS 1749369 | 2026-08-02 00:44:36 |
| Grant Date | 1997-05-30 | ULS 1749369 | 2026-08-02 00:44:36 |
| Expiration Date | 2007-05-30 | ULS 1749369 | 2026-08-02 00:44:36 |
| Cancellation Date | 2007-07-22 | ULS 1749369 | 2026-08-02 00:44:36 |